Rock County地形图
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Janesville
United States > Wisconsin > Rock County
According to the United States Census Bureau, the city has a total area of 34.76 square miles (90.03 km2), of which 34.16 square miles (88.47 km2) is land and 0.6 square miles (1.55 km2) is water. The city is divided by the Rock River. Elevation is 837 ft, or 255 m.
平均海拔：264 米
